private static Asn1Sequence FromCertificate(
X509Certificate certificate)
{
try
{
GeneralName genName = new GeneralName(
PrincipalUtilities.GetIssuerX509Principal(certificate));
if (certificate.Version == 3)
{
Asn1OctetString ext = certificate.GetExtensionValue(X509Extensions.SubjectKeyIdentifier);
if (ext != null)
{
Asn1OctetString str = (Asn1OctetString)X509ExtensionUtilities.FromExtensionValue(ext);
return((Asn1Sequence) new AuthorityKeyIdentifier(
str.GetOctets(), new GeneralNames(genName), certificate.SerialNumber).ToAsn1Object());
}
}
SubjectPublicKeyInfo info = SubjectPublicKeyInfoFactory.CreateSubjectPublicKeyInfo(
certificate.GetPublicKey());
return((Asn1Sequence) new AuthorityKeyIdentifier(
info, new GeneralNames(genName), certificate.SerialNumber).ToAsn1Object());
}
catch (Exception e)
{
throw new CertificateParsingException("Exception extracting certificate details", e);
}
}
public void Validate(X509Certificate cert)
{
try
{
byte[] b = DigestUtilities.CalculateDigest(certID.GetHashAlgorithmName(), cert.GetEncoded());
if (!Arrays.ConstantTimeAreEqual(certID.GetCertHash(), b))
{
throw new TspValidationException("certificate hash does not match certID hash.");
}
if (certID.IssuerSerial != null)
{
if (!certID.IssuerSerial.Serial.Value.Equals(cert.SerialNumber))
{
throw new TspValidationException("certificate serial number does not match certID for signature.");
}
GeneralName[] names = certID.IssuerSerial.Issuer.GetNames();
X509Name issuerX509Principal = PrincipalUtilities.GetIssuerX509Principal(cert);
bool flag = false;
for (int i = 0; i != names.Length; i++)
{
if (names[i].TagNo == 4 && X509Name.GetInstance(names[i].Name).Equivalent(issuerX509Principal))
{
flag = true;
break;
}
}
if (!flag)
{
throw new TspValidationException("certificate name does not match certID for signature. ");
}
}
TspUtil.ValidateCertificate(cert);
cert.CheckValidity(tstInfo.GenTime);
if (!tsaSignerInfo.Verify(cert))
{
throw new TspValidationException("signature not created by certificate.");
}
}
catch (CmsException ex)
{
if (ex.InnerException != null)
{
throw new TspException(ex.Message, ex.InnerException);
}
throw new TspException("CMS exception: " + ex, ex);
}
catch (CertificateEncodingException ex2)
{
throw new TspException("problem processing certificate: " + ex2, ex2);
}
catch (SecurityUtilityException ex3)
{
throw new TspException("cannot find algorithm: " + ex3.Message, ex3);
}
}
public AttributeCertificateHolder(X509Certificate cert)
{
X509Name issuerX509Principal;
try
{
issuerX509Principal = PrincipalUtilities.GetIssuerX509Principal(cert);
}
catch (Exception ex)
{
throw new CertificateParsingException(ex.Message);
}
holder = new Holder(new IssuerSerial(GenerateGeneralNames(issuerX509Principal), new DerInteger(cert.SerialNumber)));
}
private static void ConfirmDataReceived(RecipientInformationStore recipients,
byte[] expectedData, X509Certificate reciCert, AsymmetricKeyParameter reciPrivKey)
{
RecipientID rid = new RecipientID();
rid.Issuer = PrincipalUtilities.GetIssuerX509Principal(reciCert);
rid.SerialNumber = reciCert.SerialNumber;
RecipientInformation recipient = recipients[rid];
Assert.IsNotNull(recipient);
byte[] actualData = recipient.GetContent(reciPrivKey);
Assert.IsTrue(Arrays.AreEqual(expectedData, actualData));
}
public void TestECKeyAgree()
{
byte[] data = Hex.Decode("504b492d4320434d5320456e76656c6f706564446174612053616d706c65");
CmsEnvelopedDataStreamGenerator edGen = new CmsEnvelopedDataStreamGenerator();
edGen.AddKeyAgreementRecipient(
CmsEnvelopedDataGenerator.ECDHSha1Kdf,
OrigECKP.Private,
OrigECKP.Public,
ReciECCert,
CmsEnvelopedDataGenerator.Aes128Wrap);
MemoryStream bOut = new MemoryStream();
Stream outStr = edGen.Open(bOut, CmsEnvelopedDataGenerator.Aes128Cbc);
outStr.Write(data, 0, data.Length);
outStr.Close();
CmsEnvelopedDataParser ep = new CmsEnvelopedDataParser(bOut.ToArray());
RecipientInformationStore recipients = ep.GetRecipientInfos();
Assert.AreEqual(ep.EncryptionAlgOid, CmsEnvelopedDataGenerator.Aes128Cbc);
RecipientID recSel = new RecipientID();
// recSel.SetIssuer(PrincipalUtilities.GetIssuerX509Principal(ReciECCert).GetEncoded());
recSel.Issuer = PrincipalUtilities.GetIssuerX509Principal(ReciECCert);
recSel.SerialNumber = ReciECCert.SerialNumber;
RecipientInformation recipient = recipients.GetFirstRecipient(recSel);
CmsTypedStream recData = recipient.GetContentStream(ReciECKP.Private);
Assert.IsTrue(Arrays.AreEqual(data, CmsTestUtil.StreamToByteArray(recData.ContentStream)));
ep.Close();
}
internal RecipientInfo ToRecipientInfo(
KeyParameter key,
SecureRandom random)
{
byte[] keyBytes = key.GetKey();
if (pubKey != null)
{
IWrapper keyWrapper = Helper.CreateWrapper(keyEncAlg.ObjectID.Id);
keyWrapper.Init(true, new ParametersWithRandom(pubKey, random));
Asn1OctetString encKey = new DerOctetString(
keyWrapper.Wrap(keyBytes, 0, keyBytes.Length));
RecipientIdentifier recipId;
if (cert != null)
{
TbsCertificateStructure tbs = TbsCertificateStructure.GetInstance(
Asn1Object.FromByteArray(cert.GetTbsCertificate()));
Asn1.Cms.IssuerAndSerialNumber encSid = new Asn1.Cms.IssuerAndSerialNumber(
tbs.Issuer, tbs.SerialNumber.Value);
recipId = new RecipientIdentifier(encSid);
}
else
{
recipId = new RecipientIdentifier(subKeyId);
}
return(new RecipientInfo(new KeyTransRecipientInfo(recipId, keyEncAlg, encKey)));
}
else if (originator != null)
{
IWrapper keyWrapper = Helper.CreateWrapper(
DerObjectIdentifier.GetInstance(
Asn1Sequence.GetInstance(keyEncAlg.Parameters)[0]).Id);
keyWrapper.Init(true, new ParametersWithRandom(secKey, random));
Asn1OctetString encKey = new DerOctetString(
keyWrapper.Wrap(keyBytes, 0, keyBytes.Length));
RecipientEncryptedKey rKey = new RecipientEncryptedKey(
new KeyAgreeRecipientIdentifier(
new Asn1.Cms.IssuerAndSerialNumber(
PrincipalUtilities.GetIssuerX509Principal(cert),
cert.SerialNumber)),
encKey);
return(new RecipientInfo(
new KeyAgreeRecipientInfo(originator, ukm, keyEncAlg, new DerSequence(rKey))));
}
else if (derivationAlg != null)
{
string rfc3211WrapperName = Helper.GetRfc3211WrapperName(secKeyAlgorithm);
IWrapper keyWrapper = Helper.CreateWrapper(rfc3211WrapperName);
// Note: In Java build, the IV is automatically generated in JCE layer
int ivLength = rfc3211WrapperName.StartsWith("DESEDE") ? 8 : 16;
byte[] iv = new byte[ivLength];
random.NextBytes(iv);
ICipherParameters parameters = new ParametersWithIV(secKey, iv);
keyWrapper.Init(true, new ParametersWithRandom(parameters, random));
Asn1OctetString encKey = new DerOctetString(
keyWrapper.Wrap(keyBytes, 0, keyBytes.Length));
// byte[] iv = keyWrapper.GetIV();
DerSequence seq = new DerSequence(
new DerObjectIdentifier(secKeyAlgorithm),
new DerOctetString(iv));
keyEncAlg = new AlgorithmIdentifier(PkcsObjectIdentifiers.IdAlgPwriKek, seq);
return(new RecipientInfo(new PasswordRecipientInfo(derivationAlg, keyEncAlg, encKey)));
}
else
{
IWrapper keyWrapper = Helper.CreateWrapper(keyEncAlg.ObjectID.Id);
keyWrapper.Init(true, new ParametersWithRandom(secKey, random));
Asn1OctetString encKey = new DerOctetString(
keyWrapper.Wrap(keyBytes, 0, keyBytes.Length));
return(new RecipientInfo(new KekRecipientInfo(secKeyId, keyEncAlg, encKey)));
}
}
/**
* Validate the time stamp token.
* <p>
* To be valid the token must be signed by the passed in certificate and
* the certificate must be the one referred to by the SigningCertificate
* attribute included in the the hashed attributes of the token. The
* certificate must also have the ExtendedKeyUsageExtension with only
* KeyPurposeID.IdKPTimeStamping and have been valid at the time the
* timestamp was created.
* </p>
* <p>
* A successful call to validate means all the above are true.
* </p>
*/
public void Validate(
X509Certificate cert)
{
IDigest digest;
try
{
digest = DigestUtilities.GetDigest("SHA-1");
}
catch (SecurityUtilityException e)
{
throw new TspException("cannot find algorithm: " + e.Message, e);
}
try
{
byte[] certEncoded = cert.GetEncoded();
digest.BlockUpdate(certEncoded, 0, certEncoded.Length);
byte[] hash = DigestUtilities.DoFinal(digest);
if (!Arrays.AreEqual(certID.GetCertHash(), hash))
{
throw new TspValidationException("certificate hash does not match certID hash.");
}
if (certID.IssuerSerial != null)
{
if (!certID.IssuerSerial.Serial.Value.Equals(cert.SerialNumber))
{
throw new TspValidationException("certificate serial number does not match certID for signature.");
}
GeneralName[] names = certID.IssuerSerial.Issuer.GetNames();
X509Name principal = PrincipalUtilities.GetIssuerX509Principal(cert);
bool found = false;
for (int i = 0; i != names.Length; i++)
{
if (names[i].TagNo == 4 &&
X509Name.GetInstance(names[i].Name).Equals(principal))
{
found = true;
break;
}
}
if (!found)
{
throw new TspValidationException("certificate name does not match certID for signature. ");
}
}
TspUtil.ValidateCertificate(cert);
cert.CheckValidity(tstInfo.GenTime);
if (!tsaSignerInfo.Verify(cert))
{
throw new TspValidationException("signature not created by certificate.");
}
}
catch (CmsException e)
{
if (e.InnerException != null)
{
throw new TspException(e.Message, e.InnerException);
}
throw new TspException("CMS exception: " + e, e);
}
catch (CertificateEncodingException e)
{
throw new TspException("problem processing certificate: " + e, e);
}
}
public bool Match(X509Certificate x509Cert)
{
try
{
if (holder.BaseCertificateID != null)
{
return(holder.BaseCertificateID.Serial.Value.Equals(x509Cert.SerialNumber) && MatchesDN(PrincipalUtilities.GetIssuerX509Principal(x509Cert), holder.BaseCertificateID.Issuer));
}
if (holder.EntityName != null && MatchesDN(PrincipalUtilities.GetSubjectX509Principal(x509Cert), holder.EntityName))
{
return(true);
}
if (holder.ObjectDigestInfo != null)
{
IDigest digest = null;
try
{
digest = DigestUtilities.GetDigest(DigestAlgorithm);
}
catch (Exception)
{
return(false);
}
switch (DigestedObjectType)
{
case 0:
{
byte[] encoded2 = SubjectPublicKeyInfoFactory.CreateSubjectPublicKeyInfo(x509Cert.GetPublicKey()).GetEncoded();
digest.BlockUpdate(encoded2, 0, encoded2.Length);
break;
}
case 1:
{
byte[] encoded = x509Cert.GetEncoded();
digest.BlockUpdate(encoded, 0, encoded.Length);
break;
}
}
if (!Arrays.AreEqual(DigestUtilities.DoFinal(digest), GetObjectDigest()))
{
return(false);
}
}
}
catch (CertificateEncodingException)
{
return(false);
}
return(false);
}
